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eth, whisper: fix msg.Payload reads

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This commit is contained in:
Felix Lange 2015-03-04 13:12:50 +01:00
parent 7964f30dcb
commit 6e7e5d5fd5
2 changed files with 33 additions and 34 deletions
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40
eth/protocol.go
View File

@ -3,7 +3,6 @@ package eth
import (
"bytes"
"fmt"
"io"
"math/big"
"github.com/ethereum/go-ethereum/core/types"
@ -188,33 +187,37 @@ func (self *ethProtocol) handle() error {
case BlockHashesMsg:
msgStream := rlp.NewStream(msg.Payload)
var err error
var i int
iter := func() (hash []byte, ok bool) {
hash, err = msgStream.Bytes()
if err == nil {
i++
ok = true
} else {
if err != io.EOF {
self.protoError(ErrDecode, "msg %v: after %v hashes : %v", msg, i, err)
}
}
return
if _, err := msgStream.List(); err != nil {
return err
}
var i int
iter := func() (hash []byte, ok bool) {
hash, err := msgStream.Bytes()
if err == rlp.EOL {
return nil, false
} else if err != nil {
self.protoError(ErrDecode, "msg %v: after %v hashes : %v", msg, i, err)
return nil, false
}
i++
return hash, true
}
self.blockPool.AddBlockHashes(iter, self.id)
case GetBlocksMsg:
msgStream := rlp.NewStream(msg.Payload)
if _, err := msgStream.List(); err != nil {
return err
}
var blocks []interface{}
var i int
for {
i++
var hash []byte
if err := msgStream.Decode(&hash); err != nil {
if err == io.EOF {
if err == rlp.EOL {
break
} else {
return self.protoError(ErrDecode, "msg %v: %v", msg, err)
@ -232,10 +235,13 @@ func (self *ethProtocol) handle() error {
case BlocksMsg:
msgStream := rlp.NewStream(msg.Payload)
if _, err := msgStream.List(); err != nil {
return err
}
for {
var block types.Block
if err := msgStream.Decode(&block); err != nil {
if err == io.EOF {
if err == rlp.EOL {
break
} else {
return self.protoError(ErrDecode, "msg %v: %v", msg, err)

27
whisper/peer.go
View File

@ -2,10 +2,10 @@ package whisper
import (
"fmt"
"io/ioutil"
"time"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/rlp"
"gopkg.in/fatih/set.v0"
)
@ -77,8 +77,7 @@ func (self *peer) broadcast(envelopes []*Envelope) error {
}
if i > 0 {
msg := p2p.NewMsg(envelopesMsg, envs[:i]...)
if err := self.ws.WriteMsg(msg); err != nil {
if err := p2p.EncodeMsg(self.ws, envelopesMsg, envs[:i]...); err != nil {
return err
}
self.peer.DebugDetailln("broadcasted", i, "message(s)")
@ -93,34 +92,28 @@ func (self *peer) addKnown(envelope *Envelope) {
func (self *peer) handleStatus() error {
ws := self.ws
if err := ws.WriteMsg(self.statusMsg()); err != nil {
return err
}
msg, err := ws.ReadMsg()
if err != nil {
return err
}
if msg.Code != statusMsg {
return fmt.Errorf("peer send %x before status msg", msg.Code)
}
data, err := ioutil.ReadAll(msg.Payload)
s := rlp.NewStream(msg.Payload)
if _, err := s.List(); err != nil {
return fmt.Errorf("bad status message: %v", err)
}
pv, err := s.Uint()
if err != nil {
return err
return fmt.Errorf("bad status message: %v", err)
}
if len(data) == 0 {
return fmt.Errorf("malformed status. data len = 0")
}
if pv := data[0]; pv != protocolVersion {
if pv != protocolVersion {
return fmt.Errorf("protocol version mismatch %d != %d", pv, protocolVersion)
}
return nil
return msg.Discard() // ignore anything after protocol version
}
func (self *peer) statusMsg() p2p.Msg {